Resolve "Make EnergyLossWriter not require nbins"

applications/c8_air_shower.cpp

corsika/detail/modules/writers/EnergyLossWriter.inl

corsika/modules/writers/EnergyLossWriter.hpp

examples/cascade_examples/em_shower.cpp

examples/cascade_examples/mars.cpp

examples/cascade_examples/mc_conex.cpp

examples/cascade_examples/radio_em_shower.cpp

examples/cascade_examples/water.cpp

tests/output/testWriterEnergyLoss.cpp